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year of mariner 40hp

terrys

New member
Hi all. New to the game here, but will ask a question i'm sure you have heard before.
I recently purchased a 16' baby cape, all fibreglass with a 40 hp mariner. I would like to change the plugs as she runs a little rough from time to time, seems like a good place to start. What is the year of the motor, the model # is 40EL, code is 6E9L and the serial # is 421556.

Is there a particular plug # i need to purchase?

Thanks for the help, I'm sure I'll have many more questions in the future!!

Many thanks,

Terry
 
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